Arturo Have you check your pick & place equipment for part placement pressure?.. Check your board supports.. check the part thickness, if you are using the same part data for 0805 package on resistors and capacitors that could also be part of your problem. If you have any further questions please contact me off line Luis Gallegos e-mail: [log in to unmask] <mailto:[log in to unmask]> phone 262 947-7700 Sanmina Kenosha Operations -----Original Message----- From: Arturo Urias [SMTP:[log in to unmask]] Sent: Thursday, November 02, 2000 11:21 AM To: [log in to unmask] Subject: [TN] Cracked capacitors question Dear subscribers: I have seen in a few of our products some cracked capacitors. The cracks are very small and it is usually very difficult to see them, even under a high maginification microscope. When we reflow one side of the capacitor with the solder iron, the capacitor completely separates. In a few cases I have seen the cracks even before we touch it up with the solder iron, so I know that somehow it is happening before touchup. This problem has been experienced on boards that do not go through the wave. There are other components like resistors and even other capacitors that do not show the same problem, even on the same product. The capacitors are 805s. Any ideas as to what is causing this? Thanks! Arturo Urias National Instruments ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------